Brinjal is one of the important vegetable crops growing in India. Fruit rot brinjal caused by Alternaria alternata, Colletotrichum melongenae and Phomopsis vexans is one of the important diseases of brinjal. Hence, in this investigation, critical growth studies were done to understand the pathogen behaviour. The nutritional studies were taken up to know the best medium required for the growth and sporulation of the all three pathogens. The study revealed that out of nine different solid media tested, potato dextrose agar (PDA), oat meal agar and Sabouraud’s agar proved best for mycelial growth and sporulation of the all the three pathogens respectively.

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